realtek: debounce reset key for Zyxel GS1900

When the reset button is next to the SFP cages, I2C operations on the
modules might cause interference on the button's GPIO line. Add a
debounce-interval of 5 times the poll-interval to ensure the line is
actually stable for some time and not just glitching.

This squashes commit 4357f32d41eb ("realtek: debounce reset key for
Zyxel GS1900") and commit 777c6106ed4e ("realtek: move debounce-interval
to correct node").

Signed-off-by: Sander Vanheule <[email protected]>

target/linux/realtek/dts/rtl8380_zyxel_gs1900.dtsi

@@ -26,6 +26,7 @@
 			label = "reset";
 			gpios = <&gpio1 3 GPIO_ACTIVE_LOW>;
 			linux,code = <KEY_RESTART>;
+			debounce-interval = <100>;
 		};
 	};
 

target/linux/realtek/dts/rtl8393_zyxel_gs1900-48.dts

@@ -43,10 +43,11 @@
 		compatible = "gpio-keys-polled";
 		poll-interval = <20>;
 
-		mode {
+		reset {
 			label = "reset";
 			gpios = <&gpio1 3 GPIO_ACTIVE_LOW>;
 			linux,code = <KEY_RESTART>;
+			debounce-interval = <100>;
 		};
 	};